Originally Posted by
Ignimortis
I've done DRK up to 75th level so far. You have to try really, really, really hard on purpose to not have enough MP to keep Darkside up. You open up a fight with double EoS (4k mana left, enough for TBN at any point), and you generate 1400 pretty much in the next 5 seconds (CnS+Syphon Strike+regen tick). Another combo and you have enough for another EoS. If you have to TBN, you keep 3k in reserve (this can be adjusted downwards as long as you're aware of the fight/regen rates and know how much time is left till the next tankbuster). If you don't have to TBN, you can spam to your heart's content, because there is nothing else you can do with MP.